A5091559821- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Conducting polymers and applications
- Advanced battery technologies research
- Advanced Battery Materials and Technologies
- MXene and MAX Phase Materials
- Advanced Sensor and Energy Harvesting Materials
- Graphene research and applications
- Advanced Photocatalysis Techniques
- 2D Materials and Applications
- Image Retrieval and Classification Techniques
- Mesoporous Materials and Catalysis
- Electrocatalysts for Energy Conversion
- Quantum Dots Synthesis And Properties
- Catalytic Processes in Materials Science
- Image Processing and 3D Reconstruction
- Image and Object Detection Techniques
- Chalcogenide Semiconductor Thin Films
- Advanced Image and Video Retrieval Techniques
- Copper-based nanomaterials and applications
- Perovskite Materials and Applications
- Electrochemical sensors and biosensors
- Gas Sensing Nanomaterials and Sensors
- Video Analysis and Summarization
- Chemical Synthesis and Characterization
Shaanxi Normal University
2016-2025
Cardiff University
2022
China XD Group (China)
2016-2021
Shanxi Normal University
2021
Xi’an University of Posts and Telecommunications
2020
Applied Science and Technology Research Institute
2015-2019
Hunan First Normal University
2019
Ministry of Education Science and Technology
2016
Huawei Technologies (China)
2015
National University of Singapore
2005-2013
Growing MnO2 nanofibers on graphitic hollow carbon spheres (GHCS) is conducted by refluxing GHCS in a KMnO4 aqueous solution aimed to enhance the electrochemically active surface area of MnO2. The stoichiometric redox reaction between and MnO4− yields GHCS–MnO2 composites with controllable content. It found that these ultrathin are vertically grown external GHCS, yielding composite electrode showing good electron transport, rapid ion penetration, fast reversible Faradic reaction, excellent...
A novel ZnIn2S4 catalyst synthesized by hydrothermal method shows high and stable photocatalytic activity for water reduction under visible light illumination.
We report a facile and green route to reduce graphite oxide using urea as the reducing agent. UV-Vis, XRD XPS results revealed that was an effective agent in removing oxygen-containing groups from for restoring conjugated electronic structure of graphene. The obtained reduced graphene tested supercapacitor electrode. Gravimetric capacitances 255 100 F g−1 at current densities 0.5 30 A g−1, respectively, were observed. paper showed volumetric capacitance 196 cm−3. After 1200 continuous cycles...
A method for preparing three-dimensional (3D) carbon-based architectures consisting of mesoporous carbon spheres intercalated between graphene sheets is demonstrated in this paper. Colloidally dispersed negatively charged oxide (GO) strongly interacted with positively silica (MSS) to form a MSS–GO composite. The MSS were then used as template replicating (MCS) via chemical vapor deposition process, during which the GO reduced (RGO). Removal left behind 3D hierarchical porous architecture...
Hierarchical graphene-based composite consisting of graphene sheets intercalated by MnO(2)-coated carbon nanotubes (MnC) was prepared for high-performance supercapacitor electrode. The highly negatively charged oxides reduced urea (RGO) and the positively MnC functionalized with poly(diallyldimethylammonium chloride) created a strong electrostatic interaction, forming hierarchical nanostructure. elelctrocapacitive behaviors MnC/RGO (MnC-G) were systematically investigated cyclic voltammetry,...
A flexible carbon fiber aerogel with a very high surface area for supercapacitor application is reported by carbonization and chemical activation of low-cost natural cotton KOH. The fibers in the present as twisted tubular structure. Depending on amount KOH used process, specific aerogels ranges from 1536 to 2436 m2 g–1, while their electrical conductivity remains ∼860 S m–1. In spite pore size range 1.0–4.0 nm volume mainly contributed micropores, exhibits capacitance 283 F g–1 (1 g–1) 6 M...
By using three-dimensional (3D) tubular molybdenum disulfide (MoS2) as both an active material in electrochemical reaction and a framework to provide more paths for insertion extraction of ions, PANI nanowire arrays with diameter 10–20 nm can be controllably grown on the external internal surface 3D MoS2 by situ oxidative polymerization aniline monomers MoS2/PANI hybrid materials different amounts are prepared. A controllable growth provides opportunity optimize capacitive performance...
This review summarizes the latest developments in functionalization of chemically derived graphene for improving its electrocapacitive performance.
Anisotropic 2D layered material rhenium disulfide (ReS2 ) with high crystal quality and uniform monolayer thickness is synthesized by using tellurium-assisted epitaxial growth on mica substrate. Benefit from the lower eutectic temperature of rhenium-tellurium binary eutectic, ReS2 can grow (melting point at 3180 °C) sulfur precursors in range 460-900 °C efficiency.
Interfacial polymerization of 3,4-ethylenedioxythiophene (EDOT) on V 2 O 5 nanowires generates the @PEDOT core-sheath structure, which enhances conductivity, suppresses electrode dissolution, and stabilizes for zinc ion storage.
Abstract Anode‐free aqueous zinc metal batteries (AZMBs) offer significant potential for energy storage due to their low cost and environmental benefits. Ti 3 C 2 T x MXene provides several advantages over traditional metallic current collectors like Cu Ti, including better Zn plating affinity, lightweight, flexibility. However, self‐freestanding in AZMBs remain underexplored, likely challenges with deposition reversibility. This study investigates the combination of a film advanced...
Hollow carbon spheres (HCS) with specific surface areas as high 2239 m2/g were prepared by chemical vapor deposition ferrocene the precursor and colloidal silica template. Chemical oxidative polymerization of aniline in presence HCS yielded composite materials a layer polyaniline (PANI) deposited on external HCS. The electrocapacitive properties (HCS-PANI) different PANI contents evaluated using cyclic voltammetry, galvanostatic charge−discharge, electrochemical impedance spectroscopy...
A graphene-based supercapacitor electrode suitable for ionic liquid electrolytes was designed and prepared based on the electrostatic interactions between negatively charged graphene oxides (GO) positively mesoporous carbon CMK-5 platelets. Thermal annealing of GO–CMK-5 composite under an inert atmosphere yielded a hierarchical nanostructure with platelets uniformly intercalated GO sheets. The electrochemical results demonstrated that straight short mesochannels served as highway fast...
Mesoporous carbon nanospheres (MCS) with particle size of about 65 nm and primary mesopores 2.7 in diameter were prepared used as supercapacitor electrodes. Ferrocene was employed the precursor mesoporous silica template. High-resolution transmission electron microscopy revealed that MCS consisted graphene sheets small domains exhibited a specific surface area pore volume 2396 m2 g−1 2.9 cm3 g−1, respectively. The electrocapacitive performance electrode investigated by using cyclic...
Recently, interest in the use of carbonaceous materials derived from sustainable biomass wastes for supercapacitors (SCs) has grown. The sunflower stalk is selected as raw material preparing activated carbon (AC), using a simple hydrothermal carbonization (HTC) combining an effective activation method. as-prepared AC sample possesses unique mesoporous layer-stacking structure which unexpected surface area up to 1505 m2 g–1 well pore size 3.6 nm on average. As electrode SCs, demonstrates high...
A facile yet effective chemical vapor deposition (CVD) method to prepare carbon nanomesh (CNM) with MgAl‐layered double oxides (LDO) as sacrificial template and ferrocene precursor is reported. Due the combined effect of LDO organometallic precursor, as‐made hexagonal thin‐sheet CNM features a hierarchical pore system consisting micropores small mesopores size range 1–6 nm, great number random large 10–50 nm. The density, geometry, pores are strongly dependent on CVD time annealing...
Creation of nanopores on a graphene basal plane is particularly significant to improve its rate-performance and utilization efficiency in supercapacitor electrode.
The development of compressible supercapacitor highly relies on the innovative design electrode materials with both superior compression property and high capacitive performance. This work reports a which is prepared by growing electroactive NiCo2S4 (NCS) nanosheets carbon sponge (CS). strong adhesion metallic conductive NCS to porous scaffolds enable CS-NCS composite exhibit an enhanced conductivity ideal structural integrity during repeated compression-release cycles. Accordingly, delivers...
Chemical vapor deposition growth of 1T' ReS2x Se2(1-x) alloy monolayers is reported for the first time. The composition and corresponding bandgap can be continuously tuned from ReSe2 (1.32 eV) to ReS2 (1.62 by precisely controlling conditions. Atomic-resolution scanning transmission electron microscopy reveals an interesting local atomic distribution in alloy, where S Se atoms are selectively occupied at different X sites each Re-X6 octahedral unit cell with perfect matching between their...